Update: World allows Assad's murder spree to continue

 The idea that the rebels would gas themselves is based on an acceptance of a dishonest picture of them that the Assad régime has built up.

 'Tlass also tells us about Assad's history of using false-flag attacks, as could be expected of a criminal gang. This practice of staging attacks and blaming the opposition must always be remembered when considering the claims of the Assad regime about deaths caused by the revolutionaries:

 "I must now say a few words about the indiscriminate attacks that occurred in Damascus at the end of 2011 and in early 2012. I can confirm that all these spectacular operations were carried out by the regime. And if not all of them, very nearly all of them. You can take this as reliable and corroborated information. Either way I will only speak here of attacks for which I have first-hand information, transmitted by officers who conducted the investigation. I’m not talking about ordinary officers, but members of the secret cell I mentioned previously." '